436c216d0e
Having the padding types as INT_MAX + 1 means C++ compilers will end up using a signed 64 bit integer, as that is the only type that can have a value that large, as well as the negative values our enums typically contain
30 lines
719 B
C
30 lines
719 B
C
/*
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* Copyright 2014, NICTA
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*
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* This software may be distributed and modified according to the terms of
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* the BSD 2-Clause license. Note that NO WARRANTY is provided.
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* See "LICENSE_BSD2.txt" for details.
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*
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* @TAG(NICTA_BSD)
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*/
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#ifndef __LIBSEL4_MACROS_H
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#define __LIBSEL4_MACROS_H
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/*
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* Some compilers attempt to pack enums into the smallest possible type.
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* For ABI compatability with the kernel, we need to ensure they remain
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* the same size as an 'int'.
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*/
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#define SEL4_FORCE_LONG_ENUM(type) \
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_enum_pad_ ## type = (1U << ((sizeof(int)*8) - 1)) - 1
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#ifndef CONST
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#define CONST __attribute__((__const__))
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#endif
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#ifndef PURE
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#define PURE __attribute__((__pure__))
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#endif
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#endif
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